As a total disrupter to the idea of collecting and sharing this data, I shall create a signature that goes on the bottom of every email that I send.

This is a disclaimer and a protest at the collection, retention and sharing of my personal mail. By adding a string of key words, it will guarantee that each and every mail that I send will now need to be manually viewed as it is picked up by the auto scan software. If every person in the UK does exactly the same, then the entire system will quickly become so unmanageable, so unwieldy that it will become unworkable.